/Engine/Source/Runtime/VirtualProduction/StageDataCore/Public/IStageDataProvider.h
Method to actually send message from a data provider to monitors
bool SendMessageInternal ( [FStageDataBaseMessage](API\Runtime\StageDataCore\FStageDataBaseMessage) * Payload, [UScriptStruct](API\Runtime\CoreUObject\UObject\UScriptStruct) * Type, EStageMessageFlags InFlags )